How cool are chromosomes? Read what Steve the savvy scientist has to say about chromosomes and genes before testing your knowledge with some fill-in-the-blanks.

Introduce students to the ecological benefits of terracing with this middle grades science worksheet!

Students compare structures in the bodies of different organisms in order to draw conclusions about evolutionary relationships in this life science worksheet!

Explore how traits are influenced by both genetic and environmental factors with this life science worksheet!

Learn how to analyze DNA with this informative exercise designed for middle-grade students!

What do a raven, a bat, and a wolf have in common? Similar skeletal structures! In this Halloween worksheet, middle-grade students will explore homologous structures in different animals. 

Use gel electrophoresis to solve an ice cream mystery in this fun worksheet!

 

Reunite a family and their long-lost dog with the help of DNA testing in this middle-grade worksheet!

Spot the saboteur by testing DNA in this exciting middle-grade worksheet!

Learn about the features of plant and animal cells in this compare-and-contrast worksheet!

An animal cell is made up of many different organelles—color them all in this middle-grade worksheet! 

Bring a plant cell to life by coloring each organelle in this middle-grade worksheet!

Leap into learning about vernal pools and their importance for amphibian survival!

Learn about biodiversity and its impact on an ecosystem’s stability with this informative middle-grade worksheet.

Learn about the effects of a real-life disease on marine ecosystems in this informative worksheet!